Five-minute grid of total marine bird biomass densities surveyed off central California - selected cool water temperature periods, 1980-2001 (CDAS data set AL3_MASS.shp)
Data Set (DS) | National Centers for Coastal Ocean Science (NCCOS)GUID: gov.noaa.nmfs.inport:38732 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
National Centers for Coastal Ocean Science, 2024: Five-minute grid of total marine bird biomass densities surveyed off central California - selected cool water temperature periods, 1980-2001 (CDAS data set AL3_MASS.shp), https://www.fisheries.noaa.gov/inport/item/38732.
Full Citation Examples
AL3_MASS is a polygon shapefile representing 5 minute x 5 minute latitude x longitude cells that house the overall total biomass densities (kg/sq km) of up to 76 species of marine birds during periods of realtively cold or cool sea surface temperatures. Density for each of 76 marine bird species was multiplied by average body mass for that species, and these products summed for all species in a cell, to obtain total biomass density. Cells that were surveyed but in which no birds were observed have total biomass densities of zero.
Distribution Information
-
Shapefile, 0.132
Downloadable Data
This data set is in the public domain, and the recipient may not assert any proprietary rights thereto nor represent it to anyone as other than a data set compiled by R. G. Ford Consulting Company for the National Oceanic and Atmospheric Administration's National Ocean Service.
This data set is provided "as-is" without warranty of any kind. The user assumes all responsibility for the accuracy and suitability of this data set for a particular purpose.
Controlled Theme Keywords
biota, environment, oceans
Child Items
Type | Title |
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Entity | AL3_MASS |
Contact Information
Point of Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Extents
-128.999954° W,
-120.583336° E,
38.999966° N,
35.000031° S
1980 - 2001
Item Identification
Title: | Five-minute grid of total marine bird biomass densities surveyed off central California - selected cool water temperature periods, 1980-2001 (CDAS data set AL3_MASS.shp) |
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Short Name: | AL3_MASS.shp |
Status: | Completed |
Publication Date: | 2003-10-16 |
Abstract: |
AL3_MASS is a polygon shapefile representing 5 minute x 5 minute latitude x longitude cells that house the overall total biomass densities (kg/sq km) of up to 76 species of marine birds during periods of realtively cold or cool sea surface temperatures. Density for each of 76 marine bird species was multiplied by average body mass for that species, and these products summed for all species in a cell, to obtain total biomass density. Cells that were surveyed but in which no birds were observed have total biomass densities of zero. |
Purpose: |
This shapefile was created as part of a study to assess marine bird use of coastal California waters within and adjacent to the Monterey Bay, Gulf of the Farallones, and Cordell Bank National Marine Sanctuaries. This file was produced for graphic/map display of combined densities for marine bird species occurring within the study area. |
Notes: |
240 |
Supplemental Information: |
This shapefile was created as part of a biogeographic assessment of marine resources off northern and central California, for the National Oceanic and Atmospheric Administration's (NOAA's) Ocean Service. For additional information, see http://ccma.nos.noaa.gov/ecosystems/sanctuaries/ca_nms2.aspx. For additional aerial survey data information used in this project, see CD-ROM, Marine Mammal and Seabird Computer Database Analysis System, Washington, Oregon, and California (1975-1997).For additional ship-based survey data information used in this project, contact the following contributing researchers:SF-DODS Cruises (1996-2000)EPOCS Cruises (1984-1994)David G. Ainley, Ph.D.H.T. Harvey and Associates 3150 Almaden Expressway, Suite 145, San Jose, California 95118 dainley@sbcglobal.netMidwater Trawls for Juvenile Rockfish(1985-2001)David G. Ainley, Ph.D. (see above)and Carol Keiper, Ph.D. Oikonos P.O. Box 979 Bolinas, Calfornia 94924 carol@oikonos.orgORCAWALE Cruise (2001)Lisa T. Ballance, Ph.D.Ecosystem Studies Program Southwest Fisheries Science Center National Marine Fisheries Service 8604 La Jolla Shores Drive La Jolla, California 92037 lisa.ballance@noaa.gov |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
biota
|
ISO 19115 Topic Category |
environment
|
ISO 19115 Topic Category |
oceans
|
UNCONTROLLED | |
None. | biomass |
None. | biomass densities |
None. | biomass densities(kg/sq km) |
None. | bird |
None. | CA ocean |
None. | cold surface water temperature |
None. | coolwater period |
None. | ecosystem |
None. | kg/sq km |
None. | La Nina |
None. | marine biota |
None. | marine bird |
None. | Marine birds |
None. | ocean |
None. | seabird |
NOS Data Explorer Topic Category | Environmental Monitoring |
Temporal Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
None | 1980-2001 |
None | La Nia |
None | periods of cool sea surface temperature |
Spatial Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
None. | California |
None. | Central CA |
None. | coastal ocean |
None. | Cordell Bank |
None. | Gulf of Farallones |
None. | Marine |
None. | Monterey Bay |
None. | ocean off CA |
Physical Location
Organization: | National Centers for Coastal Ocean Science |
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City: | Silver Spring |
State/Province: | MD |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | None Planned |
Data Presentation Form: | vector digital data |
Entity Attribute Overview: |
Information regarding combined densities of marine birds, during selected averge or "neutral" sea surface temperature periods within the study area, is available in this shapefile. For the neutral conditions map, the following ocean seasons and years fromt he CDAS data set were used: Davidson Current Season - 1982, 1986, 1995, and 1997; Upwelling Season - 1980, 1982, 1986, 1988, 1989, 1994, 1996, and 1997; and Oceanic Season - 1982, 1991, and 1995. |
Entity Attribute Detail Citation: |
R.G. Ford Consulting Co. CDAS Central California Data Set (1980-2001). 2003 |
Distribution Liability: |
These data were prepared for an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials.NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA can not assume liability for and damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. |
Data Set Credit: | This data set was compiled by R. G. Ford Consulting Company for the National Oceanic and Atmospheric Administration's National Ocean Service: National Centers for Coastal Ocean Science, National Marine Sanctuary Program. The following researchers contributed ship-based survey data for use in production of this shapefile: David G. Ainley, Ph.D., H. T. Harvey & Associates; Carol Keiper, Ph.D., Oikonos; Lisa T. Ballance, Ph. D., Ecosystem Studies Program, Southwest Fisheries Science Center, National Marine Fisheries Service. Aerial survey data used for production of this shapefile are available on CD-ROM, Marine Mammal and Seabird Computer Database Analysis System, Washington, Oregon, and California (1975-1997).See Source Information for additional citations of contributors to this data set. |
Support Roles
Data Steward
Date Effective From: | 2003-10-16 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Distributor
Date Effective From: | 2003-10-16 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Metadata Contact
Date Effective From: | 2003-10-16 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Point of Contact
Date Effective From: | 2003-10-16 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Principal Investigator
Date Effective From: | 2003-10-16 |
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Date Effective To: | |
Contact (Person): | Gill, Tracy |
Email Address: | tracy.gill@noaa.gov |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -128.999954 | |
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E° Bound: | -120.583336 | |
N° Bound: | 38.999966 | |
S° Bound: | 35.000031 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 1980 |
End: | 2001 |
Spatial Information
Spatial Representation
Representations Used
Vector: | Yes |
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Vector Representation 1
Complex Object Present?: | Yes |
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Complex Object Count: | 1403 |
Access Information
Security Class: | Unclassified |
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Data Access Constraints: |
This data set is in the public domain, and the recipient may not assert any proprietary rights thereto nor represent it to anyone as other than a data set compiled by R. G. Ford Consulting Company for the National Oceanic and Atmospheric Administration's National Ocean Service. |
Data Use Constraints: |
This data set is provided "as-is" without warranty of any kind. The user assumes all responsibility for the accuracy and suitability of this data set for a particular purpose. |
Distribution Information
Distribution 1
Download URL: | http://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/shapes/bird_shapes.zip |
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Distributor: | |
Description: |
Downloadable Data |
File Type (Deprecated): | shapefile |
Distribution Format: | Shapefile |
File Size: | 0.132 |
URLs
URL 1
URL: | http://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/shapes/bird_shapes.zip |
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URL Type: |
Online Resource
|
URL 2
URL: | http://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/ |
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URL Type: |
Online Resource
|
Activity Log
Activity Log 1
Activity Date/Time: | 2014-03-19 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-04-05 |
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Description: |
Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. |
Activity Log 3
Activity Date/Time: | 2017-09-13 |
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Description: |
Partial upload of Spatial Info section only. |
Activity Log 4
Activity Date/Time: | 2017-11-01 |
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Description: |
Replaced entire Lineage section to populate new Source Contribution field. |
Technical Environment
Description: |
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.5.1450 |
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Data Quality
Accuracy: |
The at-sea density data, from which this shapefile was created, are the result of a synthesis of data from eight shipboard and aerial survey programs conducted in the study area in the years 1980-2001. Observation and trackline data from these studies were converted to a common format. All aerial data were continuous; ship-based data were converted separately into a continuous transect to the extent possible. From the digitized survey data, the distributions of effort and of marine bird species were mapped into 5 minute x 5 minute latitude x longitude cells using CDAS, a custom geographic information system for analyzing marine bird and mammal surveys (MMS-CDAS 2001). The length and width of the survey trackline in a given cell (estimated trackline width varied by platform, depending on speed and height above water) were used to estimate the area sampled. The number of marine birds seen in a cell was then divided by the area sampled in the cell to estimate density. If a cell was censused more than once, densities were averaged, with adjustment made for effort.Although the at-sea data span the years 1980-2001, data are not available for all seasons in all years. For the Upwelling Season, data are from 1980-1982 and 1985-2001. For the Oceanic Season, data are from 1980-1982, 1991 and 1994-2001. For the Davidson Current Season, data are from 1980-1986 and 1991-2001.All data sources were thoroughly checked for accuracy, consistency and completeness. Accuracy analyses were not applicable to this data set and therefore not produced. |
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Completeness Report: |
All shapefile cells have attribute information. |
Conceptual Consistency: |
All shapefile attributes were checked for consistency of appropriate range values. |
Lineage
Sources
Marine Mammal and Seabird Computer Database Analysis System, Washington, Oregon and California (1975-1997).
Contact Name: | R. G. Ford Consulting Co. |
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Publish Date: | 2001-01-01 |
Extent Type: | Range |
Extent Start Date/Time: | 1980 |
Extent End Date/Time: | 2001 |
Source Contribution: |
R.G. Ford Consulting Co. compiled several data sets for analyses. See Phase II report for more info on the data seta dn how they were conbined, or contact R.G. Ford at eci@teleport.com . | Source Geospatial Form: model | Type of Source Media: CD-ROM |
Process Steps
Process Step 1
Description: |
AL3_MASS is a polygon shapefile representing 5 minute x 5 minute latitude x longitude cells that contain the overall, combined densities (birds/sq km), of up to 76 species of marine birds in the CDAS central CA data set, during selected cold sea surface temperature periods, as follows. For the cold-water conditions (e.g., La Nias) map, the following seasons and years were used: Davidson Current Season -1985, 1991, 1999, 2000, 2001, and 2002; Upwelling Season - 1981, 1990, 1991, 1999, 2000, and 2001; and the Oceanic Season - 1980, 1981, 1994, 1996, 1998, 1999, 2000, and 2001. The total number of marine birds during these coolwater periods seen in a cell was divided by the area sampled in the cell to estimate density. If a cell was censused more than once, densities were averaged. Cells that were surveyed but in which no birds were observed have densities of zero. This shapefile was created as part of a study to assess marine bird use of coastal California waters within and adjacent to the Monterey Bay, Gulf of the Farallones, and Cordell Bank National Marine Sanctuaries. This file was produced for graphic/map display of combined densities for marine bird species occurring within the study area. This shapefile was created as part of a biogeographic assessment of marine resources off northern and central California, for the National Oceanic and Atmospheric Administration's Ocean Service. For additional information, see http://ccma.nos.noaa.gov/ecosystems/sanctuaries/ca_nms2.aspx. For additional aerial survey data information used in this project, see CD-ROM, Marine Mammal and Seabird Computer Database Analysis System, Washington, Oregon, and California (1975-1997). For additional ship-based survey data information used in this project, contact the following contributing researchers: SF-DODS Cruises (1996-2000) EPOCS Cruises (1984-1994) David G. Ainley, Ph.D. H.T. Harvey & Associates 3150 Almaden Expressway, Suite 145 San Jose, California 95118 dainley@sbcglobal.net Midwater Trawls for Juvenile Rockfish(1985-2001) David G. Ainley, Ph.D. (see above) and Carol Keiper, Ph.D. Oikonos P.O. Box 979 Bolinas, Calfornia 94924 carol@oikonos.org ORCAWALE Cruise (2001) Lisa T. Ballance, Ph.D. Ecosystem Studies Program Southwest Fisheries Science Center National Marine Fisheries Service 8604 La Jolla Shores Drive La Jolla, California 92037 lisa.ballance@noaa.gov |
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Process Date/Time: | 2003-10-16 00:00:00 |
Source: | Marine Mammal and Seabird Computer Database Analysis System, Washington, Oregon and California (1975-1997). |
Child Items
Rubric scores updated every 15m
Type | Title | |
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Entity | AL3_MASS |
Catalog Details
Catalog Item ID: | 38732 |
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GUID: | gov.noaa.nmfs.inport:38732 |
Metadata Record Created By: | Tyler Christensen |
Metadata Record Created: | 2017-04-05 12:48+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-10-17 16:12+0000 |
Metadata Record Published: | 2017-11-09 |
Owner Org: | NCCOS |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2017-11-09 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2018-11-09 |